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58644 (1997 WU31)
Classification: Main-belt Asteroid          SPK-ID: 2058644
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2004727719003161 3.6777e-08  
a 2.584325577026591 1.1233e-08 au
q 2.066238665107186 9.1347e-08 au
i 3.200084957885827 3.6852e-06 deg
node 236.16740967 7.3593e-05 deg
peri 206.989527520009 7.4352e-05 deg
M 133.9501918102907 1.2986e-05 deg
tp 2458435.874998595948
(2018-Nov-13.37499860)		 5.2463e-05 TDB
period 1517.467035757115
4.15		 9.8935e-06
2.709e-08		 d
yr
n .2372374433955226 1.5467e-09 deg/d
Q 3.102412488945996 1.3485e-08 au
   Orbit Determination Parameters
   # obs. used (total)      798  
   data-arc span      8316 days (22.77 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-09-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58967  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 22:50:17  

Additional Information
 Earth MOID = 1.08282 au 
 Jupiter MOID = 2.14093 au 
 T_jup = 3.392 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.69   n/a E2021B10  

58644 (1997 WU31)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

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[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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